Structural Monitoring Systems Plc is a holding company. It is engaged in the development and commercialization of its intellectual property for products used in testing and monitoring the structural integrity of materials that are subject to operational stress and fatigue in structures, such as aircraft, ships, rolling stock and power plants. It operates in Structural Health Monitoring. Its product includes CVM, which offers real-time monitoring of crack initiation and/or propagation. It has been developed for use in both a laboratory environment or on operating equipment. In-flight structural health monitoring system using CVM system produced by structural monitoring system consist of a number of different types of sensors placed at strategic locations throughout an aircraft that are linked to onboard instrumentation to detect and report on the initiation and growth of cracks. In January 2011, the Company established a wholly owned subsidiary, Dynamic Structural Monitoring LLC.